1966 GMC Engines & Components

COMP Cams Open Wheel Modified Traction Control Camshafts 12-524-5

COMP Cams Open Wheel Modified Traction Control Camshafts 12-524-5

Camshaft, Mechanical Flat Tappet, Advertised Duration 281/285, Lift .596/.563, Chevy, Small Block, Each

Part Number: CCA-12-524-5

Not Yet Reviewed

Estimated Ship Date: Jun 17, 2026 if ordered today

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Estimated Ship Date: Jun 17, 2026 if ordered today

Melling Timing Gears 2542

GEAR-TIMING

Part Number: MEL-2542

Not Yet Reviewed

Estimated Ship Date: May 22, 2026 if ordered today

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Estimated Ship Date: May 22, 2026 if ordered today

Hastings Piston Ring Sets 668030

Engine Piston Ring Set, 6-Cyl Ring Set; Phosphate

Part Number: HSN-668030

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

Enginetech Piston Ring Sets R35666-STD

Engine Piston Ring Set 53-67 CHV/GMC 3.2L/3.8L

Part Number: EGN-R35666STD

Not Yet Reviewed

Estimated Ship Date: May 18, 2026 if ordered today

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Estimated Ship Date: May 18, 2026 if ordered today

Enginetech Piston Ring Sets R35666-.75

Engine Piston Ring Set 53-67 CHV/GMC 3.2L/3.8L

Part Number: EGN-R35666-75

Not Yet Reviewed

Estimated Ship Date: May 18, 2026 if ordered today

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Estimated Ship Date: May 18, 2026 if ordered today

Enginetech Piston Ring Sets C38854-060

Engine Piston Ring Set 62-95 AMC/CHV/EAG/GMC/JEP 2.5L

Part Number: EGN-C38854060

Not Yet Reviewed

Estimated Ship Date: May 18, 2026 if ordered today

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Estimated Ship Date: May 18, 2026 if ordered today

Enginetech Rebuilders Valves V1923S

Engine Exhaust Valve 55-02 BUI/CAD/CHV/GM/GMC/OLD/PON 2.5L/3.2L/3.5L/3.8L/4.1L/4.3L/4.4L/4.6L/4.8L/4.9L/5.0L/5.3L/5.7L/6.6L

Part Number: EGN-V1923S

Not Yet Reviewed

Estimated Ship Date: May 18, 2026 if ordered today

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Estimated Ship Date: May 18, 2026 if ordered today

Enginetech Piston Sets P1520(6)STD

Engine Piston Set 66-84 BUI/CHV/GMC/OLD/PON 3.8L/4.1L

Part Number: EGN-P15206STD

Not Yet Reviewed

Estimated Ship Date: May 18, 2026 if ordered today

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Estimated Ship Date: May 18, 2026 if ordered today

FAG Bearings Harmonic Balancer Repair Sleeves SR3482

Repair Sleeve Various Makes 46-02

Part Number: FWB-SR3482

Not Yet Reviewed

Estimated Ship Date: Jun 1, 2026 if ordered today

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Estimated Ship Date: Jun 1, 2026 if ordered today

FAG Bearings Harmonic Balancer Repair Sleeves SR3486

Repair Sleeve Various Makes 49-94

Part Number: FWB-SR3486

Not Yet Reviewed

Estimated Ship Date: Jun 1, 2026 if ordered today

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Estimated Ship Date: Jun 1, 2026 if ordered today

Pioneer Automotive Engine Expansion Plugs PE-104-BR

BR EXP PLUG KIT

Part Number: PIO-PE-104-BR

5.0 out of 5 stars ( 1 )

Estimated Ship Date: May 12, 2026 if ordered today

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Estimated Ship Date: May 12, 2026 if ordered today

Hastings Piston Ring Sets 667S040

Engine Piston Ring Set, Single Cyl Ring Set; Phosphate

Part Number: HSN-667S040

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

Hastings Piston Ring Sets 660080

Engine Piston Ring Set, 8-Cyl Ring Set; Phosphate

Part Number: HSN-660080

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

Hastings Premium Ductile Ring Sets 2M667S040

Engine Piston Ring Set, Single Cyl Ring Set; Plasma Moly

Part Number: HSN-2M667S040

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

Enginetech Piston Ring Sets C38856-060

Engine Piston Ring Set 63-95 BUI/CHV/GMC/JEP/OLD/PON 3.8L/4.0L/4.1L

Part Number: EGN-C38856060

Not Yet Reviewed

Estimated Ship Date: May 18, 2026 if ordered today

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Estimated Ship Date: May 18, 2026 if ordered today

Melling Rocker Arms MRK-402

KIT-ENGINE VALVE ROCKER ARM

Part Number: MEL-MRK-402

Not Yet Reviewed

Estimated Ship Date: May 27, 2026 if ordered today

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Estimated Ship Date: May 27, 2026 if ordered today

Silv-O-Lite Hypereutectic Pistons S3468HC.040

Piston, Hypereutectic, Dish, 3.915 in. Bore, 3/32 in., 3/32 in., 3/16 in. Ring Grooves, Chevy, L6, Each

Part Number: UEM-S3468HC-040

Not Yet Reviewed

Estimated Ship Date: Jun 2, 2026 if ordered today

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Estimated Ship Date: Jun 2, 2026 if ordered today

Call to Order

Hastings Piston Ring Sets 667040

Piston Rings, Phosphate Coated, 3.915 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, 6-Cylinder, Set

Part Number: HSN-667040

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

Enginetech Main Bearings BC319J020

Engine Crankshaft Main Bearing Set 55-67 CHV/GMC/PON 4.3L/4.6L/5.3L

Part Number: EGN-BC319J020

Not Yet Reviewed

Estimated Ship Date: May 18, 2026 if ordered today

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Estimated Ship Date: May 18, 2026 if ordered today

King BB-Series Cam Bearings CS4407BB

Cam Bearings, Steel Backed Babbitt, Set

Part Number: KGB-CS4407BB

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Jul 21, 2026 if ordered today

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Estimated Ship Date: Jul 21, 2026 if ordered today

Melling Oil Pumps M-70

Oil Pump, Standard Volume, Standard Pressure, GMC, Each

Part Number: MEL-M70

Not Yet Reviewed

Estimated Ship Date: May 22, 2026 if ordered today

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Estimated Ship Date: May 22, 2026 if ordered today

Melling Timing Chain and Gear Sets 48572T

PERFORMANCE TIMING SET

Part Number: MEL-48572T

Not Yet Reviewed

Estimated Ship Date: May 22, 2026 if ordered today

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Estimated Ship Date: May 22, 2026 if ordered today

Melling Timing Chain Sets 40520

SPEED SET

Part Number: MEL-40520

Not Yet Reviewed

Estimated Ship Date: May 22, 2026 if ordered today

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Estimated Ship Date: May 22, 2026 if ordered today

Mahle Original OE Replacement Pistons 224-1658

Piston - GMC Pass. & Trk. 250 Eng. (1966-84)

Part Number: MAH-2241658

Not Yet Reviewed

Estimated Ship Date: May 27, 2026 if ordered today

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Estimated Ship Date: May 27, 2026 if ordered today

Hastings Premium Ductile Ring Sets 2M666S

Engine Piston Ring Set, Single Cyl Ring Set; Plasma Moly

Part Number: HSN-2M666S

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today